DR. CHANG HYUN OH M.D.
NPI 1477613941
Family Medicine in Temecula, CA

Q: What is Chang Oh's NPI number?

The NPI number for Chang Oh is 1477613941. It was assigned to this individual provider in the NPPES registry on December 12, 2006.

Q: What is Chang Oh's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Q: When was this NPI record last updated?

The NPPES record for Chang Oh was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since December 12, 2006PECOS Enrolled

17.26/100

CMS Quality Rating

28991 OLD TOWN FRONT ST, SUITE #202, TEMECULA, CA 92590(951) 693-5001(951) 694-0249 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About Dr. Chang Hyun Oh M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. CHANG HYUN OH M.D. (NPI 1477613941) is an individual family medicine provider in Temecula, California, licensed in California (A37083) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1477613941

Entity TypeIndividualMale

Primary Taxonomy207Q00000X

Provider Legal NameDR. CHANG HYUN OHCredential: M.D.

Location Address28991 OLD TOWN FRONT ST, SUITE #202Temecula, CA 92590-5803

Mailing Address28991 Old Town Front St, Suite #202Temecula, CA 92590-5803 · (951) 693-5001 · Fax (951) 694-0249

Phone(951) 693-5001

Fax(951) 694-0249

Sole ProprietorYes

Enumeration DateDecember 12, 2006

Last NPPES UpdateJuly 8, 2007

✔ NPI 1477613941 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207Q00000X

License✔ Licensed in CA · A37083

Definition

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

28991 OLD TOWN FRONT ST, Temecula, CA 92590

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Other Identifiers 1

Medicare ID-Type Unspecified00A370830CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Chang Hyun Oh M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Chang Oh reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Hanmaum Medical Center

35 mi

Multi-Specialty

24361 EL TORO RD STE 105
Laguna Woods, CA 92637

Reassigned Medicare billing, California enrollment
3 clinicians in this Medicare group

NPI 1912883315 (949) 415-3335

Jey Promed Corporation

56 mi

Urgent Care

5450 BEACH BLVD STE 100
Buena Park, CA 90621

Reassigned Medicare billing, California enrollment
3 clinicians in this Medicare group

NPI 1114798170 (714) 752-6273

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 15

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

1,661 services129 patients

Application of ultrasound, each 15 minutes 97035

Ultrasound is a medical procedure that uses high-frequency sound waves to capture live images from inside your body. It's a painless process typically lasting 15 minutes per session. This method aids in diagnosing conditions and monitoring health without any radiation exposure.

1,590 services124 patients

Therapy procedure using massage, each 15 minutes 97124

This therapy involves the application of pressure to your body's soft tissues using hands. It helps alleviate pain, reduce stress, and promote relaxation. Each session lasts for 15 minutes and can be tailored to your specific needs.

1,589 services124 patients

Therapy procedure using exercise to develop strength, endurance, range of motion, and flexibility, each 15 minutes 97110

This therapy involves exercises to boost strength, endurance, flexibility, and range of motion. Each session lasts 15 minutes. The goal is to improve physical function and overall health. It's a safe, beneficial method for enhancing well-being and fitness.

1,588 services124 patients

Infusion into a vein for hydration, each additional hour 96361

This procedure involves delivering fluids directly into your vein to keep your body hydrated. It is typically done when oral hydration is insufficient. Each additional hour means more fluid is infused to ensure adequate hydration.

345 services40 patients

Ringers lactate infusion, up to 1000 cc J7120

A Ringers lactate infusion is a treatment where a solution, containing essential electrolytes and lactate, is delivered into your bloodstream through an IV. This helps to replenish fluids and maintain balance in your body. It's often used during or after surgery.

115 services40 patients

Infusion into a vein for hydration, 31-60 minutes 96360

This is a procedure where a sterile solution is administered into your vein to help restore body fluid balance. It typically lasts between 31-60 minutes. It's a safe, common treatment for dehydration or to deliver medication.

113 services40 patients

Infusion, albumin (human), 25%, 50 ml P9047

This is a procedure where a solution of human albumin, a protein that helps maintain blood volume and pressure, is administered into your bloodstream. The 25% indicates the concentration of albumin in the solution, and 50 ml is the volume of the solution to be given.

50 services18 patients

Management using the results of remote vital sign monitoring per calendar month, first 20 minutes 99457

This service involves reviewing and managing your health data, which is remotely monitored and collected. Your vital signs like heart rate and blood pressure are tracked regularly throughout the month. The first 20 minutes of this data analysis per month is included in this service.

19 services11 patients

Complete ultrasound scan of abdomen 76700

A complete ultrasound scan of the abdomen is a non-invasive imaging procedure. It uses sound waves to produce images of the organs in your abdomen, such as the liver, gallbladder, spleen, pancreas, and kidneys. It helps in diagnosing, monitoring, and planning treatments.

16 services16 patients

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306

This is a heart ultrasound, also known as an echocardiogram. It uses sound waves to create pictures of your heart, showing how blood flows through it. The color depicts the blood flow's speed and direction. It also checks the heart's valves to ensure they're working properly.

15 services15 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

14 services14 patients

Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and G0180

This is a service where a doctor or authorized practitioner certifies that you require Medicare-covered home health services. They will communicate with the home health agency and review reports on your health status to ensure you receive appropriate care. This does not involve an in-person visit.

14 services12 patients

Ultrasound of both sides of head and neck blood flow 93880

An ultrasound of the head and neck blood flow is a safe, non-invasive procedure that uses sound waves to create images of blood vessels. It helps detect abnormalities like blockages or clots, ensuring optimal blood flow.

12 services12 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92590 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$91.88 typical visit price

range $59.60 – $179.42

Typical copayment $22.97 (range $14.90 – $44.85)

Most-billed visit code 99203

Established Patient

$104.64 typical visit price

range $19.37 – $146.42

Typical copayment $26.16 (range $4.84 – $36.60)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

17.26/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Individually scored

Quality

Improvement Activities

Cost

57.55

Other Providers at the Same Location NPPES 15

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

HEALTHPOINTE MEDICAL GROUP, INC.

Radiologic Technologist (Magnetic Resonance Imaging)

28991 OLD TOWN FRONT ST, SUITE 104
TEMECULA, CA 92590

Riverside County (951) 699-5282

CHRISTINE CORTES

Behavior Technician

28991 OLD TOWN FRONT ST
TEMECULA, CA 92590

Riverside County (858) 444-8823

WEST COAST SLEEP DIAGNOSTICS

Clinic/Center (Sleep Disorder Diagnostic)

28991 OLD TOWN FRONT ST, SUITE 107
TEMECULA, CA 92590

Riverside County (951) 693-4678

DANA MARIE BURRELL RN

Registered Nurse

28991 OLD TOWN FRONT ST
TEMECULA, CA 92590

Riverside County (951) 699-4017

HEALTHPOINTE MEDICAL GROUP, INC.

Clinic/Center (Physical Therapy)

28991 OLD TOWN FRONT ST, #104
TEMECULA, CA 92590

Riverside County (951) 699-5282

PERSPECTIVES THERAPY, INC

Occupational Therapist (Human Factors)

28991 OLD TOWN FRONT ST, STE 201
TEMECULA, CA 92590

Riverside County (951) 506-9800

TEMECULA VALLEY INTERNAL MEDICINE MEDICAL CORPORATION

Internal Medicine

28991 OLD TOWN FRONT ST, STE 101
TEMECULA, CA 92590

Riverside County (951) 699-5995

ERIN MONISE OTR/L

Occupational Therapist

28991 OLD TOWN FRONT ST
TEMECULA, CA 92590

Riverside County (951) 414-6029

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Chang Oh's NPI number?

The NPI number for Chang Oh is 1477613941. It was assigned to this individual provider in the NPPES registry on December 12, 2006.

Where is Chang Oh located?

Chang Oh practices at 28991 Old Town Front St Suite #202, Temecula, CA 92590. The listed phone number is (951) 693-5001.

What is Chang Oh's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Chang Oh enrolled in Medicare?

Yes. Chang Oh is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Chang Oh's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Chang Oh reassigns Medicare benefits to 2 organizations: Hanmaum Medical Center (Laguna Woods, CA) and Jey Promed Corporation (Buena Park, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Chang Oh's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Chang Oh was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.